diff --git a/docs/en/docs/admin-manual/config/be-config.md b/docs/en/docs/admin-manual/config/be-config.md
index b110cefc54..7d9ebc2b28 100644
--- a/docs/en/docs/admin-manual/config/be-config.md
+++ b/docs/en/docs/admin-manual/config/be-config.md
@@ -1099,12 +1099,13 @@ This configuration is used for the context gc thread scheduling cycle. Note: The
 
 * Type: int32
 * Description: The number of threads in the SendBatch thread pool. In NodeChannels' sending data tasks, the SendBatch operation of each NodeChannel will be submitted as a thread task to the thread pool to be scheduled. This parameter determines the size of the SendBatch thread pool.
-* Default value: 256
+* Default value: 64
 
 ### `send_batch_thread_pool_queue_size`
 
 * Type: int32
 * Description: The queue length of the SendBatch thread pool. In NodeChannels' sending data tasks,  the SendBatch operation of each NodeChannel will be submitted as a thread task to the thread pool waiting to be scheduled, and after the number of submitted tasks exceeds the length of the thread pool queue, subsequent submitted tasks will be blocked until there is a empty slot in the queue.
+* Default value: 102400
 
 ### `download_cache_thread_pool_thread_num`
 
@@ -1180,7 +1181,7 @@ The min bytes that should be left of a data dir，default value:1G
 
 ### `storage_flood_stage_usage_percent`
 
-Default: 95 （95%）
+Default: 90 （90%）
 
 The storage_flood_stage_usage_percent and storage_flood_stage_left_capacity_bytes configurations limit the maximum usage of the capacity of the data directory.
 
diff --git a/docs/zh-CN/docs/admin-manual/config/be-config.md b/docs/zh-CN/docs/admin-manual/config/be-config.md
index 5644cd4b41..540324976e 100644
--- a/docs/zh-CN/docs/admin-manual/config/be-config.md
+++ b/docs/zh-CN/docs/admin-manual/config/be-config.md
@@ -1100,7 +1100,7 @@ routine load任务的线程池大小。 这应该大于 FE 配置 'max_concurren
 
 * 类型：int32
 * 描述：SendBatch线程池线程数目。在NodeChannel的发送数据任务之中，每一个NodeChannel的SendBatch操作会作为一个线程task提交到线程池之中等待被调度，该参数决定了SendBatch线程池的大小。
-* 默认值：256
+* 默认值：64
 
 ### `send_batch_thread_pool_queue_size`
 
@@ -1187,7 +1187,7 @@ BE之间rpc通信是否序列化RowBatch，用于查询层之间的数据传输
 
 ### `storage_flood_stage_usage_percent`
 
-默认值：95 （95%）
+默认值：90 （90%）
 
 storage_flood_stage_usage_percent和storage_flood_stage_left_capacity_bytes两个配置限制了数据目录的磁盘容量的最大使用。 如果这两个阈值都达到，则无法将更多数据写入该数据目录。 数据目录的最大已用容量百分比